baber/WOPTO huggingface dataset:
Patent GB-456802-A (GB)
Title: Improvements in and connected with roads
IPC: E01C9/00
Filed: 1936-02-22
Abstract: 456,802. Road kerbs and draining channels. WOODROW, W. J., WOODROW, W. J., WOODROW, J. W., and WOODROW, A. C., (trading as WOODROW & CO., A. C.), 21, Farringdon Road, London. Feb. 22, 1936, No. 5340. [Class 107] Excessive moisture accumulating between the carpet 2 and foundation 1 of a road is drained away by a number of conduit-forming members 3 arranged upon or embedded in the foundation in such manner as to form a number of intercommunicating conduits. The members 3 are provided with means such as recesses 4 for the entry of the water and are so arranged upon the road as to communicate with the road draining means, e.g. to the sides of the drain covers 5. Each member may be keyed to the foundation by lugs 3b and to the carpet layer by means of horizontal grooves formed in the sides thereof. Relative movement of adjacent members is prevented by end lugs 3e. For inspection and cleansing purposes, spacing plates 10 bridging two spaced members are provided and a removable conduit 3c is placed between them. The upper surfaces of the members may be flush with or they may lie beneath the wearing surface of the carpet. In modifications, the members are semi-circular or tubular in shape. Adjacent the gutter, the members may be formed with upstanding flanges 9, Fig. 3, which are preferably curved towards the pavement at the upper part ; these flanges constitute the kerb of the roadway.
Patent GB-907197-A (GB)
Title: Improvements in remote control circuits
Inventor: THOMPSON FRANCIS PETER
IPC: H02P1/04
Filed: 1958-02-19
Abstract: 907,197. Protective arrangements. COAL INDUSTRY (PATENTS) Ltd. Feb. 9, 1959 [Feb. 19, 1958], No. 5395/58. Class 38 (5). In a remote control circuit for mining equipment and of the kind comprising a low voltage A.C. source T1, a limiting resistance Res2, a pilot relay R1, a pilot wire, a control switch CS, a safety resistance Res1 and a half-wave rectifier MR1, incorrect operation of the circuit is prevented by an additional relay R2. When the control switch CS is moved into its " start " position, the control circuit is completed and the resistance Resl is short circuited. The relay R1 is fully energized and closes its contacts R1(1) to complete a circuit for the relay R2 through the resistance Res2 and a rectifier MR2, but the potential drop across the resistance Rea2 is so high that the relay R2 is not operated. When the switch CS is moved into its " run " position, the resistance Res1 is no longer shortcircuited and the reduction in the current flowing in the control circuit causes the potential drop across the resistance Res2 to fall, so that the relay R2 is sufficiently energized for it to close its contacts R2(1), R2(2) in the circuit of an operating coil OC of a contactor controlling the protected equipment. Figs. 3 and 4 (not shown) illustrate modified circuits in which the relay R2 is provided with a holding circuit which does not include the resistance Res2.
Patent GB-1121431-A (GB)
Title: Improvements relating to the handling of biscuits
Inventor: MORTON DAVID CHARLES
IPC: B65B23/14
Filed: 1965-02-08
Abstract: 1,121,431. Batching biscuits. BAKER PERKINS Ltd. 9 May, 1966 [8 Feb., 1965], No. 5401/65. Heading B8C. A pusher 21 pushes a stack of biscuits 11 from a platform 12 which is lowered as the stack builds up, and the pusher has a tail 45 which receives the first few biscuits of the next stack while the platform 12 is being raised again to its initial position. The biscuits are delivered from a horizontal conveyer 1 and, in the form shown, they are projected across a plate 3 to hit a stop 6 from which they fall on to the stack. The plate 3 is inclined slightly upwardly and an air jet 10 ensures that the rear end of each biscuit takes the proper trajectory. The completed stack is pushed into a U- section carriage 26 which is subsequently closed by jaws 30 and which carries the biscuits along a curved track 50 to deposit them in pockets 20 on a wrapping conveyer. The platform 12, the pusher 21, a chain driving the carriage 26, and a switch operating a solenoid 52 discharge the biscuits from the carriage 26 are operated by cams.
Patent GB-595425-A (GB)
Title: An improved apparatus for the cartographical representation of the globe on a plane surface
IPC: G09B29/00
Filed: 1945-03-05
Abstract: 595,425. Maps. COKER, A. W. March 5, 1945, No. 5461. [Class 146 (ii)] Apparatus for representing the Northern and Southern hemispheres of the globe on a plane surface comprises two semi-circular discs 6, 8 mounted for pivotal movement about the centres 7, 9 of their straight edges with their curved edges in rolling contact, each disc being divided by evenly-spaced radial lines to represent meridians and by evenly-spaced semi-circles to represent the lines of latitude, the curved edge of each disc representing the Equator. The semi-circles may be replaced by straight lines joining the points of intersection of the semi-circles with the radial lines. One of the discs or both may be split along a meridian line or lines 2' into two or more sectors 6<1>, 6<2>.
Patent GB-608650-A (GB)
Title: Improvements connected with automatic brake adjusting devices
IPC: F16D65/54
Filed: 1946-02-22
Abstract: 608,650. Automatic adjustment of shoe brakes. NEALE, F. Feb. 22, 1946, No. 5521. [Class 103 (i)] In automatic devices for maintaining constant the shoe-drum clearance irrespective of wear of the friction lining and of the kind in which a toothed plunger of a one-way ratchet mechanism extends through the lining to engage the drum when the shoe is applied so as to be adjusted relative to the shoe as the lining wears, and engages a stop on the backplate to determine the " off " position of the shoe, the plunger is engaged by a plurality of ratchet segments carried by the brake shoe so as to surround the plunger and be radially movable relatively thereto. As shown, a plunger 22 is slidable in a housing 23, 26, carried by the shoe 11 and is formed with circumferential ratchet teeth engaged by a number of ratchet segments 24 urged radially by a spring 25 and prevented from moving axially by abutments on the housing. The plunger carries a pad 27 adapted to engage the drum 14 and encloses a compression spring 59 acting on a small plunger 60 in engagement with an adjustable stop 20 carried by the backplate. The spring 59 serves to maintain the ratchet teeth in engagement but is not strong enough to prevent retraction of the shoe by the return springs 19. As the lining wears, the plunger 22 is moved inwardly relative to the shoe until the ratchet slips a 'tooth, the shoe being thus advanced towards the drum. The adjusting device may be combined with adjustment means 18 such as those described in Specifications 588,035 and 608,659.
Patent GB-323152-A (GB)
Title: Improvements relating to presses for wearing apparel
IPC: A47G25/72
Filed: 1929-02-20
Abstract: 323,152. Moseley, H. G. Feb. 20, 1929. Presses.-In a press of the type in which pressure is applied to the top member by means of a clamping lever or cam device, means are provided for preventing lateral displacement of the top board. The extensible springs 3 are connected to a pressure bar 4 at one end the other end being provided with ratchet teeth 5. A rightangle bracket 7 attached to the edge of the board 2 carries a shackle 9, which is pivoted at 10 and is attached to a clamping lever 11. The end 11a of the lever grips the teeth 5 and the end of the pressure bar 4 engages the upstanding portion of the bracket 7, thus preventing any displacement of the top board. In a modification, the clamping lever 11 may be replaced by a cam device.
Patent GB-646515-A (GB)
Title: Improvements in and relating to circuits for electric discharge devices
IPC: H05B41/232
Filed: 1948-02-25
Abstract: 646,515. Supply systems for space discharge apparatus. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 25, 1948, No. 5644. Convention date, Feb. 28, 1947. [Class 38 (iv)] A circuit arrangement for a pair of discharge devices such as fluorescent lamps 1, 1<SP>1</SP> operating from lead and lag circuits, and in which the heating current supplied to the filamentary electrodes 3-6 is automatically reduced whilst the lamps are operating comprises a highreactance transformer 12 having a single primary winding 15, a pair of secondary windings 13, 14 connected respectively to the lamps direct and through a power factor correcting condenser 17, and three windings such as windings 18, 22, 26 for each filamentary electrode coupled respectively with the primary and two secondary windings and series-connected such that the winding 26 coupled with the secondary winding 14 bucks the voltages induced in the other two windings 18, 22. During preheating the voltages induced in windings 18, 22, 26 are respectively in phase and phase opposition resulting in a normal voltage applied across electrode 3. Whilst the lamps are operating the voltages induced in the respective windings 18, 22, 26 are displaced due to the phase displacements of the currents in the primary and secondary windings resulting in a reduced voltage applied to the electrode. An auxiliary electrode may be provided to assist starting and comprise an external strip 7, 7<SP>1</SP> extending along lamp envelope, such as a metallic paint, connected to one of the filamentary electrodes through a high impedance 8, 8<SP>1</SP>, such as is described in Specification 647,778, [Group XL (a)]. The transformer may be of the kind described in Specification 22527/47 (as open to inspection under Sect. 91).
Patent GB-1519701-A (GB)
Title: Method of producing glass bodies having a gradient of ref-active index
IPC: C03C23/00
Filed: 1976-02-13
Abstract: 1519701 Glass with refractive index gradient CARL-ZEISS-STIFTUNG [trading as JENAER GLASWERK SCHOTT & GEN] 13 Feb 1976 [19 Feb 1975] 05667/76 Heading CIM A glass body having a refractive index gradient across at least part thereof is made by treating a glass plate having a porous zone so as to provide a progressive difference in a property across said zone, the property being one on which refractive index depends, and consolidating the glass to transparent non-porous form. The treatment may comprise leaching constituents from the glass. In an example a porous glass plate consisting of (weight per cent) SiO 2  34, PbO 53À8, Na 2 O 4À0, K 2 O 7À4 and B 2 O 3  0À8 is leached with an aqueous solution of Na 2 HPO 4  and citric acid. Alternatively, porous glass may be impregnated with an aqueous solution of Pb(NO 3 ) 2 , NaNO 3  or KNO 3 . The differential treatment may comprise varying the time of contact across the porous zone, or variation in temperature. Alternatively the pore size itself may be caused to vary during production of the porous zone. The pores may be formed by sintering glass particles, or by causing phase-separation in a suitable glass followed by leaching of one of the phases. The consolidation to non-porous form may be by heating to a temperature at which the viscosity is 10<SP>5</SP>-10<SP>8</SP> poises (e.g. 560-580 C. or 720 C.). The glass with refractive index may be used in "glide" spectacle lenses.
Patent GB-867081-A (GB)
Title: Improvements relating to open-hearth furnaces
Inventor: JACKSON ALBERT
IPC: F27B3/22
Filed: 1958-02-21
Abstract: 867,081. Open-hearth furnaces. UNITED STEEL CO.'S Ltd. Feb. 20, 1959 [Feb. 21, 1958], No. 5750/58. Drawings to Specification. Classes 51 (1) and 51 (2). The subject-matter is substantially the same as in Specifications 864,974 and 867,082 of even date but with differing claims.
Patent GB-716146-A (GB)
Title: Improvements relating to 1-carbobenzoxy-4-substituted piperazines and intermediates thereof
IPC: C07D295/215
Filed: 1952-03-06
Abstract: The invention comprises 1-carbobenzoxy-4-substituted piperazines having the general formula <FORM:0716146/IV (b)/1> in which R is hydrogen or an alkyl radical and R1 is hydrogen or an alkyl, aryl, haloaryl, alkoxyaryl, cycloalkyl or aralkyl radical.  Such compounds are produced by reacting 1-carbobenzoxypiperazine or an acid addition salt thereof (obtainable by reacting piperazine hexahydrate with a carbobenzoxy halide) with a cyanate, isocyanate, carbamyl halide or nitrourea to introduce into the 4-position of the piperazine nucleus the radical -CONRR1, usually in the presence of an acid-binding substance such as an alkali metal bicarbonate, carbonate or hydroxide or an excess of the carbobenzoxypiperazine.  They can also be obtained by reacting a compound of the formula <FORM:0716146/IV (b)/2> in which Hal is halogen (obtainable by reacting 1 - carbenzoxypiperazine with a compound CO(Hal)2) with an amine of the formula HNRR1 or ammonia.  In examples (1) 1-carbobenzoxypiperazine, produced (together with some 1,4-dicarbobenzoxypiperazine) by reacting piperazine hexahydrate with carbobenzoxy chloride, is heated with nitrourea to give 1-carbobenzoxy-4-carbamylpiperazine; (2) the same product is obtained using potassium cyanate in place of nitrourea; (3) 1-carbobenzoxy - 4 - chlorocarbonylpiperazine (prepared from 1-carbobenzoxypiperazine and phosgene) is reacted with methylamine to give 1-carbobenzoxy - 4 - methylcarbamylpiperazine; (4) dimethylcarbamyl chloride and 1-carbobenzoxypiperazine are reacted to give 1-carbobenzoxy-4-dimethylcarbamylpiperazine. Using similar general methods there are prepared compounds of the first formula above having in the 4-position (5) ethylcarbamyl, (6) n-propylcarbamyl, (7) isopropylcarbamyl, (8) n-butylcarbamyl, (9) sec.-butylcarbamyl, (10) and (11) phenylcarbamyl, (12) o-chlorophenylcarbamyl, (13) p-phentylcarbamyl, (14) m-tolylcarbamyl, (15) cyclohexylcarbamyl and (16) benzylcarbamyl groups.
Patent GB-306838-A (GB)
Title: A new or improved radio receiver and/or amplifier
IPC: H04B1/16
Filed: 1929-02-25
Abstract: 306,838. Dubilier Condenser Co. (1925), Ltd., (Assignees of Linke, J.). Feb. 24, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Converting pulsating currents into steady continuous currents.-A wireless receiver of an amplifier comprises a mains supply unit and thermionic or other valves with their couplings in a single casing. The mains supply unit and the wireless receiver and amplifier are mounted on a baseboard and the connections are adapted to be completed by contacts 29 on sliding the baseboard into the casing. The opening of the door 2 is arranged to disconnect the mains at terminals 1. The apparatus on the baseboard is enclosed in a screening casing and the case 7 of the filter condensers screens the supply unit from the set.
Patent GB-307345-A (GB)
Title: A process of producing pure aluminium compounds suitable for the production of aluminium
IPC: C01F7/50
Filed: 1929-02-25
Abstract: 307,345. Bachmann, W. March 5, 1928, [Convention date]. Hydrofluoric acid; silica fluoride. - Clay or other aluminiferous substance is treated with an acid, for instance with nitric acid, to form basic aluminium nitrate, and the aluminium salt so formed is converted with a metal fluoride, such as an alkali metal or ammonium fluoride. The alkali metal salt so formed, for instance sodium or potassium nitrate, is treated with hydrofluosilicic acid to regenerate nitric acid, and to obtain sodium fuosilicate, which is then decomposed by heat to obtain sodium fluoride, and silicon fluoride, which may be converted into hydrofluosilicic acid. Alternatively, the sodium nitrate mav be treated with calcium fluoride and silicon fluoride to obtain calcium nitrate, and sodium fluosilicate, which may be decomposed by heat as above. The aluminium fluoride may be decomposed by heat in the presence of water, or other substance adapted to bind the fluorine. For example, the decomposition may be effected in the presence of saturated or superheated steam, if desired, under reduced pressure, to obtain alumina, and hydrofluoric acid, or in the presence also of silica, with the formation of silicon fluoride, or by means of hydroxides.
Patent GB-901168-A (GB)
Title: Improvements in hydraulic props or struts
Inventor: MARLOW MICHAEL JOHN
IPC: E21D15/44
Filed: 1959-02-23
Abstract: 901,168. Hydraulic pit props. DOWTY MINING EQUIPMENT Ltd. Feb. 15, 1960 [Feb. 23, 1959; May 22, 1959], Nos. 6189/59 and 17551/59. Class 20 (2). [Also in Group XXIX] An hydraulic pit prop, Fig. 1, comprising a piston-and-cylinder unit 13, 10 defining a pressure chamber 28 therebetween is provided with an excess pressure relief-valve 34, 37, 38 adapted to be opened by a push-rod 46 which is adjustably mounted in the roof-supporting cap 23 and is axially displaced when the prop is over-loaded to vent the chamber 28 to atmosphere through passages 52, 53, 25, 26, 27. In a modification, Fig. 2, the piston 65 is elevated by liquid fed from a chamber 72 to a chamber 73 through a conduit 86 and a valve 89, the liquid being pressurized by air introduced through a valve-controlled nozzle 78, 81, 83. The valve 89 acts as an excess pressure relief valve in the manner described above when a spring-loaded push-rod 92 carried by the cap 66 is axially displaced. The valve 89 also acts as a pressure release mechanism to which end the push-rod may be manually displaced by a cam-actuated plunger 103, 104 bearing on balls 99, 95 in contact with said push-rod and an adjustable ball 98.
Patent GB-765878-A (GB)
Title: Improvements in or relating to paint rollers
IPC: B05C17/02
Filed: 1954-03-03
Abstract: <PICT:0765878/III/1> A paint roller comprises a highly resilient core member 8, e.g. sponge rubber, having secured thereto a covering 9 of pile or fibrous material, e.g. sheepskin.  The roller comprises a wood sleeve 1 mounted on a spindle 4, the rubber 8 being bonded to the sleeve 1 e.g. in a mould during the formation by heating of the sponge rubber.  The sheep-skin 9 is wrapped round the sponge rubber 8 and secured by adhesive.  The diameter of the sleeve 1, which may alternatively be metal or plastic, does not substantially exceed the thickness of the rubber 8.
Patent GB-485316-A (GB)
Title: Improvements relating to metal pillars or stanchions for use in the construction of partitions for rooms and the like
IPC: E04B2/78
Filed: 1937-03-03
Abstract: 485,316. Partitions. HARRIS & SHELDON, Ltd., SANKEY & SONS, Ltd., J., and BUTLER, H. G. March 3, 1937, No. 6281. [Class 20 (iv)] A metal pillar for use in the construction of partitions comprises a pair of opposed channels 1, 2 having the openings thereof facing each other, and a pair of superimposed keying or connecting members 6, 7 arranged at an angle to each other across the space between the channels and adapted to be angularly drawn or pressed relatively towards each other in a vertical direction by a bolt or other means so as to tend to take up a horizontal position and thereby hold the channels together by a wedging or clamping action. Each of the channels is formed with a stepped base portion 3 and inwardly-turned side edges 4a, 5a. Both the members 6, 7 are of H-shape in plan, the member 6 being narrower than the member 7 and having rounded ribs 6b. The member 6 is so shaped and arranged that its side edges engage the outer faces of the flanges 4a, 5a of the channels, and the lugs 6b engage the outer faces of the side portions 4, 5 of the channels. The member 7 is so shaped that its end portions engage against the inside faces of the sides 4, 5 of the channels, and its inner side edges engage the inner faces of the flanges 4a, 5a, in this position, the member 7 is slightly inclined as shown in Fig. 3, and is connected to the member 6 by a bolt 8 and nut 9. The members 6, 7 may, alternatively, be connected by a U-spring clip. Cover plates 10, 11, which are adapted to cover the joint between the channels 1, 2, are provided with inturned edges 10a, 11a, whereby they may be sprung over the rounded ends of the lugs 6b.
Patent GB-434420-A (GB)
Title: An improved door
IPC: E04C2/36
Filed: 1934-02-27
Abstract: 434,420. Doors for buildings. HAMMERS, H., 212, Hovelstrasse, Altessen, Essen, Germany. Feb. 27, 1934, No. 6298. [Class 20 (iii)] A door consists of a wooden frame 1, Fig. 1, with a covering 2, 3 of plywood or the like glued thereto and a filling consisting of corrugated studs 5, Fig. 2, or short tubes of strawboard arranged on edge and glued to the covering 2, 3, reinforcing strips 6<a> of veneer or veneerlike rigid material being inserted between some or all of the strips. In a modification, Fig. 3, the veneer 8 is inserted between the strawboard strips 6. The height of the strips of strawboard 9, Fig. 5, is greater than that of the veneer 8, so that on pressure being applied to the members 2, 3 the strawboard spreads at the edges and affords a better joint for the glue or waterglass. To render the door dampproof, a thin layer of rubber may be placed between the parts 2, 3 with cotton wool filling to deaden sound. In order to avoid the frame showing through the cover plates, a strip adjacent the frame is left untouched by the adhesive,
Patent GB-829920-A (GB)
Title: Production of thioamides and nitriles
IPC: C07C255/49
Filed: 1957-02-25
Abstract: Aliphatic hydrocarbons, non-aliphatic hydrocarbons having at least one alkyl group, or partially oxidized derivatives of these, are converted to thioamides or nitriles by reacting them with elemental sulphur and anhydrous ammonia in a pressurized reaction zone at a temperature above 400 DEG  F., there being no contact between the sulphur and the hydrocarbon or its derivative until the latter are at a temperature above 400 DEG  F.  To produce thioamides the reaction product is cooled without releasing gases from the reaction zone; to produce nitriles, gases are bled from the reaction zone, while maintaining the reaction temperature, until the pressure is approximately atmospheric.  The term "partially oxidized hydrocarbon" is defined as meaning a hydrocarbon derivative which contains at least one carbon atom at a higher oxidation state than in the original hydrocarbon, and at least one carbon atom the oxidation state of which can be raised. The organic reactant and the ammonia (which may be used in excess) may be heated to the reaction temperature separately or together; desirably the sulphur is also pre-heated to the reaction temperature.  Instead of sulphur there may be used materials which yield sulphur under the reaction conditions, such as anhydrous ammonium polysulphide, mixtures of H2S and SO2, and mixtures of ammonium sulphite and H2S.  Inert diluents, such as benzene and diphenyl, may be employed.  Pressures above 200 p.s.i.g. are preferred.  Specified reactions are the conversion of m-xylene to 1-3-di-thiocarbamyl-benzene and to isophthalonitrile, cumene to b -phenyl-thiopropionic acid amide, amyl alcohol to thiopentanoic acid amide, and toluic acid to ammonium p-thiocarbamylbenzoate and to ammonium p-cyano-benzoate.
Patent GB-491300-A (GB)
Title: Process for stamping containers
IPC: B21D51/24
Filed: 1938-03-01
Abstract: 491,300. Stamping flexible containers. BARDIN, G. March 1, 1938, No. 6479. Convention date, March 10, 1937. [Classes 83 (ii) and 83 (iv)] Thin walled parts of collapsable or other metal containers are stamped in dies with the aid of a stiffer sheet, which may be resilient. As shown in Fig. 4, the thin sheet 14 is backed by a sheet 9, which is to form the stiffer part 2, Fig. 1, of a collapsable container, the sheet 9 resting on a backing up die 12 which is supported by springs 13. The nozzle part 10 of the container is formed by a preliminary operation.